Biology — The Big Five Mass Extinctions
Earth's five great extinction events (millions of years ago).
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title "The big five mass extinctions (Ma)"
axis -500 0
lane "Extinctions"
event -445 "Ordovician-Silurian"
event -375 "Late Devonian"
event -252 "Permian-Triassic"
event -201 "Triassic-Jurassic"
event -66 "Cretaceous-Paleogene"